Area Code +30-21-(03510000...03519999) located in Athens, Attiki (A1), more detail is as below. Place International Dialing Code : 30 International Prefix : 00 National Prefix : 0 National Destination Code : 21 Subscriber Number From : 03510000 Subscriber Number To : 03519999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : OTE S.A Click here to buy Greece Area Code Database Other Information Language Code : el (Greek) Country Number : 300 (Greece) Country Code : GR (Greece) Region Code : A1 Region Name : Attiki City : Athens Timezone : Europe/Athens Coordinated Universal Time : +02:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 37.9800 Longitude : 23.7200 ‹ previous : +30-21-(03500000...03509999) next › : +30-21-(03520000...03529999) Dialling Instructions For trunk calls: - 21 03510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 30 21 03510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 03510000 ~ 03519999 (Count: 10,000) Example: +30-21-03510000 / 0030-21-03510000 (021-03510000 / 0-21-03510000) +30-21-03510001 / 0030-21-03510001 (021-03510001 / 0-21-03510001) +30-21-03510002 / 0030-21-03510002 (021-03510002 / 0-21-03510002) +30-21-03510003 / 0030-21-03510003 (021-03510003 / 0-21-03510003) +30-21-03510004 / 0030-21-03510004 (021-03510004 / 0-21-03510004) ...+30-21-xxxxxxxx / 0030-21-xxxxxxxx (021-xxxxxxxx / 0-21-xxxxxxxx) ...+30-21-03519995 / 0030-21-03519995 (021-03519995 / 0-21-03519995) +30-21-03519996 / 0030-21-03519996 (021-03519996 / 0-21-03519996) +30-21-03519997 / 0030-21-03519997 (021-03519997 / 0-21-03519997) +30-21-03519998 / 0030-21-03519998 (021-03519998 / 0-21-03519998) +30-21-03519999 / 0030-21-03519999 (021-03519999 / 0-21-03519999)